Yieldable disc blade assembly

Details Yieldable disc blade assembly Yieldable disc blade assembly

1979-07-27

1981-06-30

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

With spring means other than for detent

172599, A01B 6100, A01B 7104

Patent

active

042757916

ABSTRACT:
A yieldable disc blade assembly for individual disc blades which prevents structural damage of the disc blades when such blades contact a rock or other obstruction in the field. Once the disc blade is tripped by the force of the blade encountering an obstruction, the assembly requires a decreased force to move the disc blade from the normal working position to the yielding position away from the obstruction.

REFERENCES:
patent: 2253391 (1941-08-01), Ohlendorf
patent: 2324064 (1943-07-01), Coffing
patent: 3324065 (1943-07-01), Coffing
patent: 3576216 (1971-04-01), Tanke

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